Oil-retaining and dust-excluding ring



June 5, 1928. 1,672,345

J. J. SCHNEIDER OIL RETAINING AND DUST EXCLUDING RING .e, 1922 4 Sheets-Sheet 1 -44 as a June 5, 1928. 1,672,345

. J. J. SCHNEIDER OIL RETAINING AND DUST EXCLUDING RING Filed Nov. 6, 1922 '4 Sheets-Sheet 2 June 5, 1928. v 1,672,345

. J. J. SCHNEIDER OIL RETAINING AND DUST EXCLUDING RING Filed Nov. 6: 1322 4 Sheets-Sheet 3 I "F u nr I l I 23 I 47 72.-

June 5, 1928.

J. J. SCHNEIDER OIL RETAINING AND DUST EXCLUDING RING Filed Nov. 6. 1922 4 Sheets-Sheet 4 \fi r 0 q o I:

I II I II o l: of Z 3 a a eZ I 4 IIIIIIIIIIIIIIII'IIII'llIIII'IIIIIIIIIIIIIIIIIIIIIIIIIIIIIIII vx\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\v I Patented June 1928.

UNITED" stares PATENT OFFICE.

JOHN JOSE! SCHNEIDER, 0F FRANKIORT-ON-THE-MAIN, GERMANY.

OIL-RETAINING am) nus'r-nxononme ante.

Application filed November 8, 1922, Serial No. 599,299, and in Germany November 14, 1921.

In bearings, such as are preferably used for the axles of railway vehicles and the like, an oil-retaining ring is usually arranged on -the collar of the axle journal, and is proto be suspended on the axle box, and conse-- quently the dust-ring cover has 'had to be bored through and provided with a special cap, in order to accommodatethe suspension means. It was therefore necessary to modlfy .the dust-ring cover, but this could not be done in the case of some axle boxes, because the frame of the vehicle nearly touches the axle box at the point in question;

In the present form of the device the frame carrying the oil-retaining ring is secured, not on the'axle box, but directl on the dust-ring, so that the dust-ring an oilretaining ring form a singleunit.

The invention further consists in thenovel arrangement of thedust-ring, which serves to make a tight joint between the collar of the journal and the axle box and has, hitherto, usually been made of wood, with felt washers. The novel feature in the present dust-ring is that it is'madeof sheet metal, or preferably of two sheet-metal discs, connected together in any way whatsoever. Of these sheet-metal discs, the one carries the 40 actual packing ring of felt or similar ma-' terial, whilst the other ispr'ovided with av suspension .device onwhich the usual. oilretaining ring is flexibly suspended. This arrangement simplifies the construction and,

. on the other hand, ensures a long period of service of the dust-ring. At the same time, .the inconvenience arising from the swelling of wooden dust-excluding rings is prevented. The two sheet-metal discs .areconnected together by curling the upper edge of the one, so that the other member can be inserted under it. At the lower part ofthe device, two tongues on the one member project through the other member and can be 56 secured by a cotter. The onemember also and return to the oil bath carries two fiat or other springs, which bear agamst the "axle box and press the other sheet-metal disc with its felt washer against the other sideof the axle box.

Figures 1 and 2, are respectively a sec- 00 tional side elevation and a front elevation the oil-retaining ring being combined with the dust-ring; j

Figures. 3 .to 8 shew a modification of the' new dust-ring, Fi ure 3 being a" front view of aportion of t e ring, Figure 4 a plan thereof and Figure 5 a longitudinal-section .therethrough whilst Figures 6,7 and 8 are pended from the lower part of the dust ring.

15 is'a section on llne 0-?) Fig. 14. 4

the embodiment according to Figures 1 and 2, 1 is the axle journal indicated, and

2' is the'corresponding collar, whilst 3-is'the axle box which carries the upper bearing bush 4 for thejournal. On the axle collar 2 is seated an oil-retaining rin 5, with a 5. wiper 6, and which co-acts wit the collar 1 2, at acertain distancetherefrom, for. the purpose of catching the oil spurtin from {)he axle collar and returningt to t e axle This oil-retaining ring 5 is connected with the dust-ring 11, a frame 14 being arranged on the dust-ring and connected'with-the oilretaining ring 5 by means of a flat spring 15. This arrangement avoids the projection of the nose pieces of the supporting frame inan outward direction beyond the rim of the dust-ring chamber, whereby the tightness of the cover joint might be impaired. In this case also, the flat spring 15 mlght be replaced by spiralsprings.

. Similarly, in this case also, the spring 15 is arranged so as t'o ress the'oil-retaining rin a alnst the axle ush.

n t is embodiment it is also advisable to protecttbe feltwa'sher 12 of thedust-ring .11 against lateral squeezing in its upper,

half, since it is subjected there to the whole pressure ofthe' spring. This would cause a gap to form below, between the axle collar 11o and felt washer, and allow dust to enter therethrough. For this reason the frame 14 is made of some kind of bearin metal, for instance brass, and arranged to le the collar at 16, thus taking up the pressure direct and relieving the felt washer. Only when this is done can the oil-retaining ring be suspended on the dust ring without prejudice in the efiicacy of the latter.

In the construction of dust-ring according to Figures 3-12, the dust-ring is composed of two sheet-metal discs or plates 19 and 20, each of which is turned over or flanged at its rim 21 so that the two rims can overlap and enable the two discs 19 and 20 to be secured together. The disc 19 is provided with an annular segment 22 of bearing metal or the like, which rests, at the top, on the axle collar 2 and thereby prevents the upper portion of the felt packingwhich will be 'mentioned later-from being crushed. In addition, the disc 19 is rovided with a spring 23, the ends of whic are secured at 24 and 25, serving for the suspension of the oilretaining ring (Figures 9-11).

The other half of the dust-ring consists of the disc 20, which is provided, both at its inner and outer marginal portions, with a large number of holes 26, serving for the attachment, by sewing or otherwise, of strips of felt 27 and 28, represented by dotted lines in Figure 3. The felt strip 27 bears against the axle collar whilst the felt strip 28 makes a tight joint, on the outside, at the rim of the axle box (Figure 12). The strip 27 is also covered with a strip of leather 29 on the side Where the oil-retaining rin is suspended, in order to prevent any .fi res of felt becoming detached from said felt strip and finding their way into the oilretaining ring and therefore into the oil bath.

At its upper part the rim 21 of the disc 20 is bent over a second 'ime at 30, so that the other half 19 can be'inserted under it. On the other hand, the half 19 of the disc is provided at its lower part with two tongues 31, adapted to be passed through corresponding openings 32 in the other half 20, and a cotter 33 is then inserted through holes in the tongues 31, as a fastening. Thus the two halves of the disc are held together by the rim 30 at the top and by the tongue and cotter fastening 31, 33, below.

Theihalf 19 of the 'disc carries on its outer side two flat springs 34, which bear against the wall 35 of the axle box (Figure 12), and thus press the entire dust-ring outward and cause the felt ring 28 to fit closely all round.

Other springs could, of course, be usedfor ar against provided at its bottom with a tongue 39 the V ends of which are adapted to engage behind the edges of a recess 40 in the disc 19, for

which purpose the ends of the tongue are off set, as shewn in Figure 9. As the result of the flexible suspension provided by the hook 36 at the top and this tongue connec-- tion 39 below, the oil-retaining ring 37 is held in flexible contact on the dust-ring, and the oil-retaining ring is thereby rendered entirely independent of the axle box, andfollows all the movements of the dust-ring and therefore of the axle collar.

As shown in Figures 3 and 6' the part 19 of the dust ring is cut away at 41 to allow the passage of the hook 36 of the oil-retaining ring; and the part 20 of the dust-ring is provided with a corresponding depression at 42, into which the hook 36' is adapted to enter. Here, again, the spring 23 presses the oil-retaining ring against the axle bush.

The hook 36 like the tongue 39, is bent, after the manner of a crank (Figure 10), so as to leave a certain space 43 (Figure 12) between the dust-ring and the oil-retaining ring. In addition to enable the felt ring 27 to be covered b the leather strip 29, this space prevents. elt fibres from getting into the oil-retaining ring and therefore into the oil bath. This space is also increased by the fact that an annular depression 43 is provided on the half 19 of the dust-ring.

Instead of sewing the middle strip of felt 27 on to the one sheet-metal disc, it may also be clamped between the two sheet-metal discs. I T

The wiper 38 resting on the lower por tion of the oil-retaining ring can also be flexibly suspended from the dust-ring, in the manner shewn, or in any other way, and without the oil-retaining ring. In any case the wiper is wide enough to ensure that any oil wiped off in the vicinity of the dust-ring will be led away over the partition between the dust-ring chamber and the oil bath and into the latter. This construction is shown in Figs 13 to 15, as a separate embodiment, in

which 14 is the frame, 11 the wooden dustthe face sprin s, 37 the oil-returning ring and 38 the wipers. The journal 1, collar 2, a'xle box 3 and bearing brass 4 are, as well as the other above mentioned parts, the same as before described. The oi ring 37 has a vertical flange 50" whose"lateraledges are guided under rabbets 51 of securing plates 24 similar to those 24, and which plates also hold the ends of a .wire spring 23* similar to spring 23, to urge the oil returning ring or member against the under side of the collar 2.-

I claim: 1. The combination with a dust excluding ring arranged for support by the axle collar, of an oil retaining ring yiel ingly supported lair ' journal box, a spring on the dust excluding against the collar by the dust ring for removing oil from the collar, both rings moving verticallywith the axle.

2. The combination with a dust excluding ring arrangedfor support by the axle collar, of an oil excluding ring mounted on the former ring,,.and a spring common to both rings for urgin them against the axle collar.

3. The combination with a dust excluding ring arranged for support by the axle collar, of scrapers yieldingly supported on the ring against the collar to direct the oil away from said ring.

4'. The combination with a' dust excluding ring arranged for support by the axle collar; of an oil ring for returing oil to a ring to urge it against the collar and scrapers on the oil ring for contacting with a journal.

5. The combination with a dust excluding ring having bearing support on a rotating part; of an oil retaining ring yieldingly urged against said part andsupported by said dust excluding ring, said rings contacting with their respective rotating .parts in opposite directions.

6. The combination with a dust excluding ring having a felt for engaging a car axle collar, a bearing block secured to said ring and resting on top of said collar an oil returning ring detachably and yieldingly supported by said dust ring against the collar to return splashed oil to a journal box, and

scrapers carried by said oil returning ring for scraping oil from beneath a journal.

7. The combination with a dust excluding ring for railway car journals; of means supporting the ring from the axle collar, an oil returning ring yieldingly connected at its top to said dust ring to urge the returning ring against the journal collar and movably connected at its bottom thereto, to direct splashed oil away from said dust ring to a journal box, and scrapers on the oil ring engaging the under side of the axle collar to remove adhering oil.

8. In combination, adust-excluding ring member and a frame member each having a' marginal flange, the flange of one member having a bent overportion under which the ot-hersea'ts, one of the'membershaving a hole and the other a tongue arranged to pass through said hole for-fastening the ring and frame members together, and a felt on one member and a bearing segment on the other member to take the load off the felt.

9. The combination with a dust-excluding ring member and a frame member deta'chably secured thereto; of a felt between the members surrounding the rotating part and means arranged between said frame member and felt to prevent the fraying of the felt. g I

10. The combination. with; a dust-excluding ring member and a frame member detachably secured to said ring member; of a felt between the members and secured to said ring member and a layer of leather between said frame member and felt.

11. The combination with a dust-excluding ring member and a frame member detachably secured thereto; of a spring carried by one of said members, and an oil-retaining ringhaving a hook arranged to engage said spring and suspend the oil retaining ring for yielding contact with an axle. 12. The combination with a dust-exclud- ,ing ring member having a depression and aframe member secured thereto havinga cutaway portion opposite" said depression, a springsecured to one of said members extending across said cut-away portlon and depression, and an oil retaining ring having spring between the members; of an oil retaining ring having'a hook at its top to engage said spring and' a tongue at its bottom to engage in said recess said tongue and hook bent to space said oil retaining ring from said frame;

15. The combination with a dust-excluding ring, a frame member secured thereto.

and having a recess at its bottom and aspring between'the members; of an oil retainingring having a hook at its top to en- 7 gage said spring and a tongue at its bottom to engage in said recess, said tongue and hook bent to space said oil retaining ring from said frame,-said frame being provided with a depression surrounding therotating partto increase the space between it and.

said oil retaining ring. v

16. The combination with an axle box having a. dust chamber and an oil. chamber separated by a partition of a dust ring and a frame detachably secured thereto, both arranged in said chamber. an oil retaining ring detachably and yieldingly secured to said frame and wiperson said oil retaining ring extending across said partition.

17. The combination with a dust-exclud- Ill ing ring member having a marginal flange and a depression around its journal opening and a felt in said depression on one side of said ring and'a marginal felt on the other side to lie against a dust chamber wall; of a I frame member having a marginal flange'fitting the aforesaid flange and central 'de pression lying against the first mentionedfelt, tongues on said frame assing throu h the metal of the dust ring or securing t e members together, a bearing segment in the central depression of said frame member, a spring carried .by one of said members and an oil-retaining ring havin a hook at its top to engage said spring w ereby said spring urges the oil returning ring against a journal and a lug at its bottom engaging 10 said frame member.

18. The combination with a plate and a my invention felt carried thereby; of a parallel plate detachably secured to the former plate, a hearing block for resting on the axle collar on the latter plate operating to support the In testimony that I claim the foregoinga-s 20 I have signed my name. John JOSEF- SCHNEIDER. 

